# Math Bus vs Patter

The clearest difference is price: Patter at Free against Math Bus's $0.99. Patter also leads on update cadence (every 11 days vs every 4 months). Math Bus's advantage is in-app purchases (none vs 6) and iOS requirement (13.0 vs 18.6). On ads and device support there is nothing between them.

Patter is free to download; Math Bus costs $0.99 up front. Patter sells 6 in-app purchases, starting at $0.99 per month. Math Bus asks for nothing beyond the download.

Math Bus ships an update every 4 months, Patter every 11 days. The most recent releases landed on September 9, 2026 and August 4, 2026 respectively.

## The numbers

| Metric | Math Bus | Patter |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/patter-ai-language-chat/id6762643113/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 11 days** |
| Monetization | — | Free with in-app purchases |
| Size | 18 MB | 75 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Henk Jurriens](https://appshunter.io/developer/524160208) | [David Vilaverde](https://appshunter.io/developer/1493782863) |

## What reviewers say

### Math Bus

[App page](https://appshunter.io/ios/app/math-bus/id716831058)

**Features:** macOS Compatibility

**In-app purchases:** none


### Patter

[App page](https://appshunter.io/ios/app/patter-ai-language-chat/id6762643113)

Practice real conversations in over 10 languages with AI personas. Get instant, contextual corrections without judgment. Ideal for adult learners who want to move beyond basic phrases and build conversational fluency.

**Highlights:** AI conversation practice, In-moment corrections with explanations, Multiple AI personas, Translation assist, Voice dictation, Vocabulary list, Optional daily goals

**Features:** Family Sharing

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Day Tripper | $0.99 | per month |
| Explorer | $1.99 | per month |
| Resident | $2.99 | per month |
| Expat Family | $6.99 | per month |
| 100 Patter Credits | $0.99 | one-time |
| Bring Your Own AI Keys | $4.99 | one-time |


## Frequently asked questions

### Is Math Bus free?

Math Bus costs $0.99, with no in-app purchases.

### Is Patter free?

Patter is free to download, with in-app purchases available.

### Do Math Bus or Patter have ads?

Neither Math Bus nor Patter shows ads.

### Which is updated more often, Math Bus or Patter?

Math Bus ships an update every 4 months, and Patter every 11 days. Most recently, Math Bus was updated on September 9, 2026 and Patter on August 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*